Programming an SST39SF040 with the T48 and minipro

· Ruben Schade · Aug. 21, 2026, 3:22 a.m.
EEPROM programming retrocomputing XGecu T48 BIOS
Summary
The blog post by Ruben Schade discusses his experience programming a SST39SF040 EEPROM using a XGecu T48 programmer for retrocomputing purposes. He details the process of sourcing the chip, verifying compatibility with software, and the eventual programming of the BIOS image. Although the effort did not revive the motherboard, he gained familiarity with another type of EEPROM. This post combines personal anecdotes and technical insight related to retrocomputing.
Read full post on www.rubenerd.au →
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